Trap it, then take it over to the neighbor. Tell them "I found your kitty. Looks like he got away!" Smile, and leave. Next time, take it to the animal shelter. Problem solved.
http://www.havahart.com/store/live-a...imal/stray-cat
http://www.havahart.com/resources/ex...l-cat-trapping
If you don't want to go that route, a Super Soaker is a BLAST! Just don't squirt it when it's on the car.
Paintballs HURT!