Some enjoyable bits, reminiscent of Hancock, but I didn't understand how the man is able to see such a cross section of the queue when he is in it - won't he just be sandwiched between the same two people the entire time?
The whole bitch ex-wife thing also seems a bit hackneyed - you could make the whole thing more appealing by having him determined because he really loves his son and doesn't want to let him down. I'm also not sure if the audience would buy him using plant pots. Couldn't you cut to him writing sloppily because his writing arm is in a sling?
theboygazza