http://powderbomb.com/modules.php?name=Con...=showpage&pid=1 <-read this first
keep fresh/half used tins in a grocery bag or something you wouldnt mind throwing away, this way if you need to stash shit its quick and easy.
also, the laptop bag does work providing you dont look sus. example, neat hair or bucket hat, book/newspaper/magazine being read while walking, normal clothes (not baggy or bright), glasses (if you want to go that far) and just look casual. if you get pulled over just act cool and dont start shit.
but consider stashin your paint nearby or at the spot your hitting in advance, only try the disguise when your randomly bombing shit.
AND think of ways to get out of the situation if one does occur in advance, why your out at 3 am, back your stories up if they decide to do a check on you (your ''job'' for e.g.)