Took a look at your speed calculation in setBattlePhaseDelay(), and I think the problem is you're doing game.floor < game.highestFloor, whereas instead you need to do game.floor.toNumber() < game.highestFloor.toNumber(), or better yet game.floor.lessThan(game.highestFloor)
Here's my police solution: ?lvl=19&code=p11:2f4;r11:1f3;b11:3f1;y12:2f0;y10:2f0;c17:11f0;c16:11f0;c15:11f0;c14:11f0;c13:11f0;i12:11f6;c10:11f0;c9:11f0;c8:11f0;c7:11f0;c6:11f1;c6:10f1;c6:9f1;c6:8f1;c6:7f1;c6:6f1;c6:5f1;c6:4f1;c13:4f3;c13:5f3;c13:6f2;c13:7f1;c13:8f1;p14:6f2;c18:6f3;c18:7f3;c18:8f3;c18:9f3;c18:10f3;c8:5f3;q8:6f7;r9:5f2;p9:6f2;b9:7f2;y10:5f2;y10:7f2;g9:2f0;c11:5f2;c12:5f2;i12:7f7;c10:6f2;c11:7f2;c11:11f0;q11:6f1;y12:6f3;c12:8f3;c12:9f3;p12:10f3;b11:10f2;r13:10f0;q12:12f0;g18:11f0;c17:6f2;q15:6f5;c16:6f2;c14:8f2;b14:9f0;c14:10f1;c15:8f2;c15:9f0;c15:10f0;q16:8f2;y16:9f0;c16:10f0;c17:8f3;c17:9f3;c17:10f0;c14:2f3;r14:3f0;c14:4f2;c15:2f0;c15:3f0;c15:4f2;c16:2f0;y16:3f0;q16:4f6;c17:2f0;c17:3f1;c17:4f1;b16:7f1;r16:5f3;c14:5f1;c14:7f3;c13:9f1;c13:3f3;b7:4f2;p8:4f3;r9:4f0;c8:3f3;c6:3f2;c7:3f2;c8:2f3;
 "Incremental Adventures"){kind=icon}
 "Manufactoria"){kind=icon}