As the only (if not one of the few on RRU) that has played LEGO Loco enough as a kid and remembers everything still, They are both most likely trying to get the the gas tank to the above-left of that crosswalk.
"Tony" minifigs have certain locations they like to head to. The gas station is a main location and you can find four of them at one normally. They also sometimes go to the spaceship pad and gas tank.
"Angel" is one I'm not too familar with but I believe she is also trying to get the the gas tank, being that she looks like a contruction worker of sorts. I do believe they would also head to a factory if possible. Maybe even the solar station but I don't know.
You can actually check out the game files for information like this. Although where minifigs like to get their "jobs" (term used in game files) is hard to tell, you do have a limit on buildings that say how many can work at it. I'll take a look at the files again to see what I can find.
EDIT: Okay, I got it. Takes a lot of searching but you CAN find out who works where, and maybe even edit it. Using the mechanic as an example, "Tony" in this case. Also credit goes to LUModder for giving me the idea of using Resource Hacker on Loco exe.
Under the "String Table" there are groups of different strings contained. All of them have numbers assigned to them. This was found out years before but I noticed that the buildings have a "PossibleEmployees" variable in their .dat files if you use the LOCORFTOOL on the game. In the string table, value 451 there is a list that includes the line '7202, "people\\mechanic\\mechanic"'. In the "Resource\building\Petrl-st.dat" (the gas station) file from the RFTool, you have a PossibleEmployees equal to "7202 -1 -1 -1 -1". Also from the RFTool the "people\mechanic\mechanic.dat" files matches the line from the RFTool. This is basically how the game reads this data.
Hmmm. You know, if we could edit this data in the exe through resource hacking, we might be able to mod the game a bit more. Now if only we could fix those broken bitmaps. Maybe those can also be found in the exe.
EDIT EDIT: Further proof. Under the launcher.dat, what I'm thinking is the spaceship pad, There is a PossibleEmployees of "7202 7202 7218 7198 7198". I can guess the -1s from the gas station are just sloppy nulls. I do not recall the other two workers are but it seems that the 7198 is a "manager2" while 7218 is a "tdriver1".
That's enough file searching for me today.